import { BaseMessage } from '@langchain/core/messages';
import { LayerDescriptionWrapper } from '../llm/generateLayerDescriptions';
import { AgentRegistry } from '../registry/agentRegistry';
import { HITLResponse } from '../hitl/types';
import { FieldSearchService } from '../services/fieldSearch';
import { LayerSearchService } from '../services/layerSearch';
import { UniqueValueCountInfo, SummaryStatisticsResult } from '@arcgis/core/smartMapping/statistics/types.js';
import { DomainUnion } from '@arcgis/core/layers/support/types';
export type FieldStatistics = {
    summaryStatistics: SummaryStatisticsResult | null;
    uniqueValues: UniqueValueCountInfo[] | null;
};
export type FieldInfo = {
    name: string;
    alias: string;
    type: string;
    description: string;
    valueType: string;
    statistics?: FieldStatistics;
    domain?: DomainUnion;
};
export type FieldsRegistry = Map<string, FieldInfo>;
/** Registry mapping layer IDs to their description and associated field registry. */
export type LayersAndFieldsRegistry = Map<string, {
    layerItem: LayerDescriptionWrapper;
    fieldRegistry: FieldsRegistry;
}>;
export type FieldVectors = {
    layerId: string;
    results: {
        name: string;
        score: number;
    }[];
};
export type VectorSearchFieldResults = FieldVectors[];
/** Sequence of AI and human messages that make up the chat history. */
export type ChatHistory = BaseMessage[];
export type Services = Readonly<{
    /** Registry used to discover and invoke available agents. */
    agentRegistry: AgentRegistry;
    /** Finds candidate layers using semantic (vector) search. */
    layerSearch?: LayerSearchService;
    /** Finds relevant fields for given layers using semantic (vector) search. */
    fieldSearch?: FieldSearchService;
    /** Registry of available layers and their fields for query / search (optional). */
    layersAndFieldsRegistry?: LayersAndFieldsRegistry;
    /** Per-request cache for query embeddings - shared across all agents */
    embeddingCache: QueryEmbeddingCache;
}>;
export type CustomConfigurableType = Record<string, unknown> & {
    thread_id: string;
    /** Optional HITL response injected by the host application. */
    hitlResponse: HITLResponse | null;
    /** Runtime services provided to agents and nodes. */
    services: Services;
    agentId?: string;
    context?: unknown;
};
/** Cache for query embeddings to avoid duplicate API calls within a request */
export type QueryEmbeddingCache = Map<string, number[]>;